如何修复“ ERROR TypeError：$$不是函数”

Question

core.js：15723错误TypeError：this.getArchivedValue不是函数     在Object.push ../ src / app / person / components / yyyy / y

getArchivedValue(item): boolean{
    this.personService.checkOrganization(item).subscribe((data: any) => { this.organizationChecked = data; },
        err => console.error(err));
    return this.organizationChecked;
}

archivedColumn(rowData) {
    var value = this.getArchivedValue(rowData.organizationId);
    return value;
}